Investments in Partially Owned Entities (85 Tenth Avenue) (Details) - 85 Tenth Avenue - USD ($)	Sep. 24, 2024	Dec. 31, 2024
Schedule of Equity Method Investments [Line Items]
Equity method ownership percentage		49.90%
JV | Mortgage 85 Tenth Avenue | Mortgages Payable
Schedule of Equity Method Investments [Line Items]
Debt amount	$ 625,000,000
JV | 3.82% Senior Notes | Mortgages Payable
Schedule of Equity Method Investments [Line Items]
Debt amount	$ 396,000,000
Stated rate (as a percent)	3.82%
JV | Mezzanine A Note | Mortgages Payable
Schedule of Equity Method Investments [Line Items]
Debt amount	$ 129,000,000
Stated rate (as a percent)	5.20%
Non-default accrued interest rate waiver	50.00%
JV | Mezzanine B Note | Mortgages Payable
Schedule of Equity Method Investments [Line Items]
Debt amount	$ 100,000,000
Stated rate (as a percent)	6.60%
Non-default accrued interest rate waiver	50.00%
Residential Building | JV
Schedule of Equity Method Investments [Line Items]
Equity method ownership percentage	49.90%